Data from R.M. Young 61302V Barometric Pressure Sensor Station level pressure, add 21.23 to correct to sea level Data Format: YYYY/MM/DD HH:MM:SS.SS PPPP.PP where YYYY = Year MM = Month DD = Day HH = Hour (UTC) MM = Minute SS.SS = Second PPPP.PP = Atmospheric pressure, hPa Sample Data: 2017/04/28 11:05:00.52 0991.18 2017/04/28 11:05:01.06 0991.18 2017/04/28 11:05:01.59 0991.18 2017/04/28 11:05:02.13 0991.17 2017/04/28 11:05:02.66 0991.16